cheers ] and as usual a guy from kenya won. [ laughter ] >> oh, boy. [ laughter ] >> leave it to david letterman, right? >> well, he's pretty funny. he is going to miss the election because that's usually all he talks about. >> lots of jokes there. >>> president obama is busy back at work after winning re- election. >> he and the first family returned to the white house yesterday after tuesday night's victory celebration in chicago. he has a busy few weeks ahead working with republicans and democrats to avoid the "fiscal cliff." if congress does not act during its lame duck session, there will be an automatic tax increase and spending cuts. >> that's the so-called "fiscal cliff." and it's one factor in a big sell-off on wall street. jill schlesinger, editor at large for cbsmoneywatch.com, joins us now. so jill, what caused the selling? >> reporter: well, you know, it was a bit of that "fiscal cliff." but now there's some serious concerns about the eurozone right now. and that was what got investors kind of freaked out early yesterday morning. dow plunging 313 points or 2.4% to 12,932. s&p down 3